WD 1407+425

All names: WD 1407+425, Gaia DR3 1498447607777405312, WDJ140945.24+421600.65, Gaia DR2 1498447607777405312, SDSS J140945.23+421600.6, J1409+4216, PG 1407+425, 2MASS J14094525+4216008, USNO-A2.0 1275-08385462, SDSS J140945.24+421600.7, GALEX J140945.2+421600, TIC 393965191, Gaia EDR3 1498447607777405312, LAMOST J140945.23+421600.6, PG, SDSS J140945.24+421600.6, WIRED J140945.23+421600.6, PB 1549, CBS 169

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 O'Brien et al. 2024 Caron et al. 2023 McCleery et al. 2020 Kilic et al. 2020 MWDD H Gaia DR2 Stilism Guo et al. 2015 Limoges et al. 2015 Gianninas et al. 2011 Tremblay et al. 2011 Farihi et al. 2008 Liebert et al. 2005 Zuckerman et al. 2003 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 14 09 45.22 (0.01) 14 09 45.24 14 09 45.22 (0.02) 14 09 45.22 (0.02) 14 09 45.22 14 09 45.24 (0.01) 14 09 45.22 14 09 45.24 14 09 45.29 14 09 45.24
Declination 42 16 00.50 (0.02) 42 16 00.69 42 16 00.50 (0.02) 42 16 00.50 (0.02) 42 16 00.50 42 16 00.65 (0.02) 42 16 00.50 42 16 00.65 42 15 57.96 42 16 00.67
Spectral type DAZ DAZ DA DAZ DA DA DA DA DA DA DAZ DA DA5.0 DA DA_auto DA5 DA DA
Effective temperature [K] 9980.0 (54) 9965.0 (88) 9862.0 (39) 9873.6 (37) 9980.0 (53) 9750.0 9910.0 (142) 10090.0 (145) 10040.0 (20) 10010.0 10010.0 (143) 9856.0 10021.0 (41) 9982.0 (20) 9838.0 (17)
log(g) [cgs] 8.07 (0.008) 8.06 (0.02) 8.04 (0.005) 8.05 (0.01) 8.06 (0.007) 8.03 8.03 (0.05) 8.28 (0.05) 8.30 (0.02) 8.21 (0.05) 8.00 8.08 (0.006) 8.30 (0.01) 8.27 (0.02)
Mass [M] 0.642 (0.006) 0.639 (0.01) 0.623 (0.005) 0.639 (0.006) 0.615 0.62 (0.03) 0.78 (0.03) 0.79 (0.01) 0.73 (0.03) 0.649 (0.005) 0.759 (0.01)
log(Luminosity) [L] -2.86 -2.95
Cooling age [Gyr] 0.6900 0.6680 0.9550 0.9120
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H) -9.87 -9.866
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 27.86 (0.02) 27.86 (0.02) 27.78 (0.03) 27.78 (0.03) 27.78 (0.03) 27.86 27.86 (0.02) 27.78 (0.03)
Distance [pc] 35.89 (0.03) 35.89 (0.03) 36.00 (0.04) 36.00 (0.04) 36.00 (0.04) 36.50 (1) 31.00 32.00 35.89 35.89 (0.03) 36.00 (0.04)
Composition H H H H H H H H
Proper motion (right ascension) [mas/yr] -13.97158263 (0.02) -13.96585732 (0.03) -13.972 (0.02) -13.966 -5.7
Proper motion (declination) [mas/yr] -9.905148319 (0.02) -9.899439292 (0.04) -9.905 (0.02) -9.899 -10.6
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude 15.03 15.03 14.98
R magnitude
I magnitude
J magnitude 14.95 (0.006) 14.93 15.00 (0.04)
H magnitude 14.87 (0.06) 14.74 14.87 (0.06)
K magnitude 14.89 (0.1) 14.88 14.89 (0.1)
u magnitude 15.44 (0.004) 15.43 (0.004) 15.44 (0.004) 15.44 (0.004) 15.40 (0.02) 15.38 (0.02)
g magnitude 15.05 (0.003) 15.05 (0.003) 15.05 (0.003) 15.11 (0.03) 15.08 (0.03)
r magnitude 15.14 (0.003) 15.14 (0.003) 15.14 (0.003) 15.14 (0.03) 15.13 (0.03)
i magnitude 15.28 (0.003) 15.29 (0.003) 15.29 (0.003) 15.37 (0.01) 15.35 (0.01)
z magnitude 15.44 (0.005) 15.44 (0.005) 15.44 (0.005) 15.46 (0.01) 15.43 (0.01)
G magnitude 15.07 (0.001) 15.09 15.09 15.07 15.07 (0.003) 15.09
BP magnitude 15.12 (0.001) 15.12 15.12
RP magnitude 14.97 (0.001) 14.97 14.97
Pan g magnitude 15.08 (0.005) 15.08 (0.005)
Pan r magnitude 15.16 (0.004) 15.16 (0.005)
Pan i magnitude 15.28 (0.003) 15.28 (0.002)
Pan z magnitude 15.44 (0.004) 15.44 (0.004)
Pan y magnitude 15.55 (0.005) 15.54 (0.004)
E(B-V) 0.002

* Constant surface field

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The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.